1. In kind pro-rata distribution from TCV V, L.P. ("TCV V") to its partners, without consideration.

2. These shares are directly held by TCV V. Each of Jay C. Hoag, Richard H. Kimball, John L. Drew, and Jon Q. Reynolds, Jr. (collectively the "TCM Members") are Class A Members of Technology Crossover Management V, L.L.C. ("TCM V"), which is the sole general partner of TCV V. The TCM Members and TCM V may be deemed to beneficially own the shares held by TCV V, but the TCM Members and TCM V disclaim beneficial ownership of such shares except to the extent of their pecuniary interest therein.

3. In kind pro-rata distribution from TCV Member Fund, L.P. ("Member Fund") to its partners, without consideration.

4. These shares are directly held by Member Fund. Each of the TCM Members are (i) Class A Members of TCM V, which is a general partner of Member Fund, and (ii) limited partners of Member Fund. The TCM Members and TCM V may be deemed to beneficially own the shares held by Member Fund, but the TCM Members and TCM V disclaim beneficial ownership of such shares except to the extent of their pecuniary interest therein.

5. Acquisition by The Hoag Family Trust U/A Dtd 8/2/94 pursuant to an in kind pro-rata distribution by Member Fund to its partners, without consideration.

6. Acquisition by The Hoag Family Trust U/A Dtd 8/2/94 pursuant to an in kind pro-rata distribution by Benchmark Founders' Fund V, L.P. to its partners, without consideration.

7. Acquisition by Hamilton Investments Limited Partnership pursuant to an in kind pro-rata distribution by Member Fund to its partners, without consideration.

8. Acquisition by The Richard and Kathryn Kimball Family Trust UTA dated 2/23/94 pursuant to an in kind pro-rata distribution by Member Fund to its partners, without consideration.

9. Acquisition by The Drew Family Trust dated 10/5/2004 pursuant to an in kind pro-rata distribution by Member Fund to its partners, without consideration.

10. Acquisition by The Reynolds Family Trust pursuant to an in kind pro-rata distribution by Member Fund to its partners, without consideration.

11. Mr. Hoag is a trustee of The Hoag Family Trust U/A Dtd 8/2/94. Mr. Hoag disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

12. Mr. Hoag is the sole general partner and a limited partner of Hamilton Investments Limited Partnership. Mr. Hoag disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

13. Mr. Kimball is a trustee of The Richard and Kathryn Kimball Family Trust UTA dated 2/23/94. Mr. Kimball disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

14. Mr. Drew is a trustee of The Drew Family Trust dated 10/5/2004. Mr. Drew disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

15. Mr. Reynolds is a trustee of The Reynolds Family Trust. Mr. Reynolds disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.